Abstract: The invention relates to a vessel (1), especially a drillship or so-called drilling ship. The vessel comprises a hull (3) having a bottom surface (5) and a deck (7). Said vessel is provided with a moon pool (2), which extends from said bottom surface of the hull in an upward direction through the hull. Further, said vessel is provided with a cavity (10) located at a front side of the moon pool. Said cavity is at least partly open at a bottom side thereof in order to allow water to flow into said cavity. Moreover, said cavity is at least partly open at a rear side of said cavity in order to allow water to flow directly from said cavity into the moon pool, as a result of which moon pool sloshing can be diminished and the mean flow resistance of the vessel when sailing can be reduced.

Abstract: The invention relates to a vessel, especially a drillship or so-called drilling ship. The vessel comprises a hull having a bottom surface and a deck. A moon pool extends from the bottom surface of the hull in an upward direction through the hull. Further, the vessel is provided with a cavity located at a rear side of the moon pool, with the cavity being at least partly open at a front side to allow water to flow from the moon pool directly into the cavity. Further, the cavity is at least partly open at a bottom side to allow water to flow out of the cavity. The cavity is defined at least partly by a trailing wall sloping downwards in a rearward direction and at least partly by a ceiling connecting a rear wall of the moon pool with the downwardly sloping trailing wall.

Abstract: The invention relates to a monohull drillship (1), comprising an elongated hull (2) extending in the length direction (3) of the drillship. Said hull (2) is provided with at least one open moon pool (4) arranged to be located at the waterline (5) during use of the drillship. The drillship (1) is arranged for multiple-activity operations, e.g. simultaneous drilling and casing handling, in such a manner that drilling equipment can be passed through said at least one moon pool (4) at at least two locations (7, 8), i.e. at at least two so-called well centers, which are spaced apart from each other in at least a direction (6) substantially transverse to the length direction (3) of the hull of the drillship.

Abstract: The invention relates to a vessel, especially a drillship or so-called drilling ship. The vessel comprises a hull having a bottom surface and a deck. Said vessel is provided with a moon pool, which extends from said bottom surface of the hull in an upward direction through the hull. Further, said vessel is provided with a cavity located at a rear side of the moon pool. Said cavity is at least partly open at a front side to allow water to flow from said moon pool directly into said cavity. Further, said cavity is at least partly open at a bottom side to allow water to flow out of said second cavity. The cavity is defined at least partly by means of a trailing wall sloping downwards in a rearward direction and at least partly by means of a ceiling connecting a rear wall of the moon pool with said downwardly sloping trailing wall.

Abstract: The invention relates to a vessel (1), especially a drillship or so-called drilling ship. The vessel comprises a hull (3) having a bottom surface (5) and a deck (7). Said vessel is provided with a moon pool (2), which extends from said bottom surface of the hull in an upward direction through the hull. Further, said vessel is provided with a cavity (10) located at a front side of the moon pool. Said cavity is at least partly open at a bottom side thereof in order to allow water to flow into said cavity. Moreover, said cavity is at least partly open at a rear side of said cavity in order to allow water to flow directly from said cavity into the moon pool, as a result of which moon pool sloshing can be diminished and the mean flow resistance of the vessel when sailing can be reduced.

Abstract: The invention relates to a monohull drillship (1), comprising an elongated hull (2) extending in the length direction (3) of the drillship. Said hull (2) is provided with at least one open moon pool (4) arranged to be located at the waterline (5) during use of the drillship. The drillship (1) is arranged for multiple-activity operations, e.g. simultaneous drilling and casing handling, in such a manner that drilling equipment can be passed through said at least one moon pool (4) at at least two locations (7, 8), i.e. at at least two so-called well centres, which are spaced apart from each other in at least a direction (6) substantially transverse to the length direction (3) of the hull of the drillship.